Test ID:	1.3.6.1.4.1.25623.1.1.1.2.2016.614
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-614-1)
Summary:	The remote host is missing an update for the Debian 'xen' package(s) announced via the DLA-614-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'xen' package(s) announced via the DLA-614-1 advisory. Vulnerability Insight: Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2016-7092 (XSA-185) Jeremie Boutoille of Quarkslab and Shangcong Luan of Alibaba discovered a flaw in the handling of L3 pagetable entries, allowing a malicious 32-bit PV guest administrator can escalate their privilege to that of the host. CVE-2016-7094 (XSA-187) x86 HVM guests running with shadow paging use a subset of the x86 emulator to handle the guest writing to its own pagetables. Andrew Cooper of Citrix discovered that there are situations a guest can provoke which result in exceeding the space allocated for internal state. A malicious HVM guest administrator can cause Xen to fail a bug check, causing a denial of service to the host. For Debian 7 Wheezy, these problems have been fixed in version 4.1.6.lts1-2. For Debian 8 Jessie, these problems have been fixed in version 4.4.1-9+deb8u7. We recommend that you upgrade your xen packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'xen' package(s) on Debian 7. Solution: Please install the updated package(s). CVSS Score: 6.8 CVSS Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2016-7092 BugTraq ID: 92862 http://www.securityfocus.com/bid/92862 Debian Security Information: DSA-3663 (Google Search) http://www.debian.org/security/2016/dsa-3663 https://security.gentoo.org/glsa/201611-09 http://www.securitytracker.com/id/1036751 Common Vulnerability Exposure (CVE) ID: CVE-2016-7094 BugTraq ID: 92864 http://www.securityfocus.com/bid/92864 http://www.securitytracker.com/id/1036753
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